1995 Buick Regal Rough Idle

I have a 1995 Buick Regal. All of a sudden it seems to load up on fuel rough idle, have put new fuel pump in and didn’t help. has to be primed to get started once it runs its fine unless you shut if off then it has to be primed again before it will start I am at a loss as to what is wrong

ProTech:
Have you checked to see if the fuel pressure regulator might be leaking? That can cause a problem like you are experiencing.

I am believe so I guess confusion is because of being primed.

Didn’t quite understand you.

I will check the fuel pressure regulator. I didn’t see signs of leaks.

If it’s loading up with fuel, it has to be coming from somewhere. A leak in the diaphragm of the fuel pressure regulator will cause a hard starting condition.

OK will try to replace that to see if it will fix it.

Check for a leak first. I wouldn’t replace it if it’s not leaking. Remove the vacuum line to it and check for fuel leakage or even a fuel smell is reason enough to replace it them.

Do you have a picture to reference.

Not through this chat, but the regulator is located on the fuel rail, right behind the throttle body. Easy to find and check.

I appreciate your help will give it a try.

No problem at all! Good luck!


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